Gas burner



Oct. 24, 1933. H, w, MOSELEY GAS BURNER Filed Aug. 1, 19 31 Patented Oct. 24, 1933 UNITED TAT S PATENT". QFFIZCEJ V GAS BURNER Hal W. Moseley, New rleans,;La. Application August 1, 1931. Serial No. 554,537

8 Claims. (01. 158- -116) 1 This invention relates to gas burners of the type used in laboratories and in the arts to produce varying degrees of heat.

The usuai'blast burner now in use has been found to be satisfactory, especially whenused with natural gases having a relatively high methane content, such as furnished by wells in the South and used throughout many of the Southern States. This naturalgas has a methane contentwhich often ranges from '70 to 90% of the. gas. With this type of gas, the usual burners are not only unsatisfactory from a heating standpoint but are very dangerous due to the ease with which they are extinguished or blown out.

An importantobject ofmy invention is to provide a burner which is capable of satisfactory use With natural gases having a high methane content as well as with the usual artificial gases such as coal gas and water gas, pyrofax gas and natural gas.

'types of gases without blowing out, which will 0 will be apparent during the course of the followparts throughout the same,

produce a very high heat,'and which may be readily adjusted to suit the varying demands of laboratory or commercial use. i

Other objects and advantages of my invention ing description. I 1

In the accompanying drawing, which forms a part of this specification and wherein like characters of reference denote like or corresponding Figure 1 is a. side elevation of a burner base having my attachment applied thereto,

Figure 2 is an elevation of the burner attachment, 7 V I Figure 3 is a fragmentary sectional view thereof,

Figure 4 is a fragmentary section of the burner tip, and, r 1 I Figure 5 is a plan view thereof. I V

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of my invention the numeral 10 designates the usual base provided with a ball and socket joint 11, an air inlet pipe 12 and a gas inlet pipe 13. Valve 14 controls the admission of air and valve 15 controls the admission of gas. The base is provided with a tubular extension 16 whichconveys the air and gas separately to the burner. The construction so far described forms no part of my present invention, and may be replaced byany form of burner base. I

My burner attachment comprises. a tubular stem 17 adapted to receive slidably and frictionally" the extension 16 and having an enlarged cylindrical barrel 18 at its upper end. The stem 17 opens into the barrel 18 and the barrel is open at its upper end. The stem 17 may be made in various sizes to fit different bases, and in'place of a sliding fit in the stem 1'? the extension 16 may have a screw threaded or other adjustable connection therewith. The barrel 18 need not be of fixedv size but I have found that a diameter of one and one half inches and a length of two inches is very efficient in operation.

An air tube of relatively small diameter is ar: ranged concentrically within the extension 16 and connects with the air inlet .12. This air tube 19 extends above the end of the member 16 and when the stem 1'? is telescoped over the extension 16, the tube 19 will extend into the barrel 18 to apoint spaced below the top of the barrel. The outer surface of the tube 19 is tapered at its upper end as, seen in Figures 3 and 4.

The burner tip comprises a substantially inverted cone shaped body member 20 having a radial flange 21. The outer surface of the body member 20 immediately adjacent the flange 2 1- is cylindrical and frictionally engages the inner surface of the barrel 18, the flange 21 abutting against the end of the barrel. In place of a frictional fit, the tip 20 may be sorewthreadedly received in the barrel 18. The apex of the inverted cone shaped body 20 of the burner tip is provided with a cylindrical opening 22 of substantially the same diameter as the tube 19, and is adapted to receive the tapered end thereof. The opening 22 may be adjusted with respect to the tapered end of thetube by means of the telescoping adjustmentof the stem 17 and extension 16. I

The sides ofthe cone may be arranged at any desired angle but I have found that in practice, an angle of substantially gives the best results. A series of openings 23, shown as. four in number, are arranged in the walls of the cone adjacent the opening 22 and are arranged at right angles to the tube 19 and therefore are at right angles to the stream of air flowing from the tube 19. A second series of openings 24, shown as six in number, are arranged in the walls of the conical tip adjacent the outer end thereof, and are also arranged at'right angles to the tube 19 and to the stream of air issuing therefrom. Both the openings 23 and the openings 24 connect the interior of the barrel 18 with the interior of the conical tip 20. I

1 In operation the gas flows through the inlet 13, extension 16, stem 17 and barrel 18, outside of the tube 19.- Air flows through inlet, l2 and tube 19. Air enters the conical tip through the; tapered end of the tube 19 and the opening 22 in the tip. Gas flows around the tube- 19 and through the openings 23 and 24 at right angles to the stream of air, in contrast to the usual concentric streams of gas and air. The gas entering through openings 22 and 23 insures a thorough and complete mixing of the air and gas streams entering the burner tip before ignition takes place and this mixing is further assisted by the conical shape of the tip 20. The air entering the cone from the end of tube 19 under pressure creates a suction which causes a decided swirling of the air and gas adjacent the apex of the cone which insures complete mixing.

The gas entering the cone through openings 24 burns as it enters the cone and ignites the mixture of gas and air as it passes through the cone. The gas from the openings 24 burns'continuously and acts as a pilot light if for any reason the force of the air. should extinguish the burner flame. The arrangement of the openings 24 provides a pilot light arranged perpendicularto the flow of air and gas adjacent the open top of the cone and removed from the main current of air which is its most effective position.

- The mixing and burning of the gas and air both occur internally of the burner tip. The walls of the cone become quickly heated, and the walls of the cone radiate heat inwardly which serves to preheat the gas in the barrel 18 resulting in more complete combustion, and greater heat. In actual practice temperatures in excess of 1000 C. have been obtained with my burner, which is more than adequate for all analytical chemical and laboratory operations in which blast lamps are used, and is adequate for many operations in foundries and machine shops. My novel burner may be made to fit any of the usual burner bases; it may be used with natural gases having an extremely high methane content; it is easily adjusted and it insures complete mixing of the air and gas before and during combustion.

While I have shown and described the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of my invention. or the scope of the subjoined claims.

Having thus described my invention what I claim and desire-to protect by Letters Patent is:

l. A burner comprising a substantially inverted cone shaped tip,'the walls of the tip being arranged at an angle of substantially means for passing, a stream of air through the apex of the tip to the interior thereof, and means to pass an inflammable gas through the walls of the tip in a direction at an angle of substantially 90 to the direction of flow of the air stream.

2. A burner for gas having a high methane content comprising a preheating chamber for the gas, a substantially inverted cone shaped burner tip extending into said chamber and adapted to heat the same, means to pass a stream of air into said burner tip adjacent its apex, means to pass gas from the preheating chamber into the tip at an angle to the stream of air and means to ignite the mixture of gas and air at a point between the apex of the tip and its open end.

3. A burner comprising a preheating barrel, a substantially inverted cone shaped tip extending into said barrel, the angle of the Walls of said cone being substantially 60, means for passing a stream of air under pressure through the apex of said tip, and means to pass gas from said barrel into said burner tip at an angle to the stream of air.

4. A-burner comprising a preheating barrel, a substantially inverted cone shaped tip extending into said barrel, the angle of the walls of the tip being substantially 60", means to pass a stream of air through the tip adjacent its apex, and means to pass gas from the preheating barrel into the burner tip at an angle of substantially 90 to the stream of air.

5. A burner comprising a preheating barrel, a substantially inverted cone shaped tip secured adjacent the end of said'barrel and extending thereinto, said tip having an opening adjacent its apex, an air tube extending into said opening and adapted to pass a stream of air into said tip, said tip having a plurality of openings in its Walls which connect the preheating barrel with the interior of the tip, said openings being arranged at an angle of substantially 90 with respect to the stream of air. J

6. A burner comprising a gas preheating barrel, a substantially inverted cone shaped burner tip secured adjacent the end of said barrel and having a plurality of openings in its walls which connect the preheating barrel with the interior of the tip, said openings being arranged at an angle to the stream of air, whereby the air and gas from the barrel will be intimately mixed adjacent the apex of said cone, and means to ignite said mixture of air and gas at a point spaced a substantial distance from theapex -o the cone.

'7. A burner comprising a gas barrel, a substantially inverted cone shaped tip secured to said barrel and extending thereinto, said tip having an opening adjacent its apex, an air tube arranged topass a stream of air through'said opening, said tip having a plurality of openings,

in its walls which connect the barrel with the interior of the tip, said openings being'arranged adjacent the apex-of said cone and arranged at an angle to the stream of air, whereby the gas from said barrel and the air from said tubeare intimately mixed adjacent the apex of said tip, and said tip having a plurality of gas'ope'nings in its walls at a point spaced a substantial distance from its apex, said last named openings being arranged at an angle to the stream of air and burning continuously during the'operation of the burner to ignite the mixture of air and gas.

8. A burner comprising a gas barrel, a substantially inverted cone shaped tip secured to,

said barrel and extending thereinto, the walls of said tip having an angle of substantially '60,

said tip having an opening in its apex, an air a plurality of gas openings in its walls at a point spaced a substantial distance from the apex of the tip, said last named openings being arranged at an angle of substantially 90 to the stream of air and burning continuously during the operation of the burner to ignite the mixture of gas and air, the tip servingto radiate heat inwardly to preheat the gas in the barrel.

HAL W. MOSELEY. 

